IB Chemistry HL - 2025 - Key Concepts
In the IB Chemistry HL (Higher Level) 2025 Key Concepts section, you will find summary videos that will help you review the most important concepts and skills necessary for success. They are ideal for a quick refresher before tackling questions in the Revision Village Questionbank or Practice Exams sections of the website.
The Nuclear Atom
13 minutes
Electron Configuration
11 minutes
Structure 1
Models of the Particulate Nature of Matter
The Nuclear Atom
13 minutes
Electron Configuration
11 minutes
Ionic Bonding
14 minutes
Covalent Bonding
15 minutes
VSEPR & Molecular Polarity
13 minutes
Intermolecular Forces
11 minutes
Metallic Bonding
5 minutes
Structure 2
Models of Bonding & Structure
Ionic Bonding
14 minutes
Covalent Bonding
15 minutes
VSEPR & Molecular Polarity
13 minutes
Intermolecular Forces
11 minutes
Metallic Bonding
5 minutes
Properties of Elements
18 minutes
The Periodic Table - Classification of Elements
15 minutes
Structure 3
Classification of Matter
Properties of Elements
18 minutes
The Periodic Table - Classification of Elements
15 minutes
Enthalpy Changes
12 minutes
Reactivity 1
What Drives Chemical Reactions?
Enthalpy Changes
12 minutes
Rate of Reaction
6 minutes
Collision Theory & Catalysts
8 minutes
Equilibrium
11 minutes
Le Chatelier's Principle
10 minutes
Reactivity 2
How Much, How Fast & How Far?
Rate of Reaction
6 minutes
Collision Theory & Catalysts
8 minutes
Equilibrium
11 minutes
Le Chatelier's Principle
10 minutes
Theories of Acids & Bases
11 minutes
pH & pOH Calculations
8 minutes
Properties and Strengths of Acids & Bases
14 minutes
Reactivity 3
Mechanisms of Chemical Change
Theories of Acids & Bases
11 minutes
pH & pOH Calculations
8 minutes
Properties and Strengths of Acids & Bases
14 minutes
Thank you Revision Village Members
#1 IB Math Resource
Revision Village is ranked the #1 IB Math Resources by IB Students & Teachers.
34% Grade Increase
Revision Village students scored 34% greater than the IB Global Average in their exams (2021).
80% of IB Students
More and more IB students are using Revision Village to prepare for their IB Math Exams.